Title :
A new approach to state observation of nonlinear systems with delayed output
Author :
Germani, A. ; Manes, C. ; Pepe, P.
Author_Institution :
Dipt. di Ingegneria Elettrica, L´´Aquila Univ., Italy
fDate :
1/1/2002 12:00:00 AM
Abstract :
The article presents a new approach for the construction of a state observer for nonlinear systems when the output measurements are available for computations after a nonnegligible time delay. The proposed observer consists of a chain of observation algorithms reconstructing the system state at different delayed time instants (chain observer). Conditions are given for ensuring global exponential convergence to zero of the observation error for any given delay in the measurements. The implementation of the observer is simple and computer simulations demonstrate its effectiveness
Keywords :
convergence; delays; nonlinear control systems; observers; chain observer; computer simulations; delayed output; delayed time instants; global exponential convergence; non negligible time delay; nonlinear systems; observation algorithms; observation error; output measurements; state observation; state observer; state prediction; system state; Application software; Control systems; Convergence; Delay effects; Delay systems; Equations; Linear systems; Nonlinear systems; Open loop systems; Time measurement;
Journal_Title :
Automatic Control, IEEE Transactions on
